Dial operating mechanism



July 4, 1933. L. H. MORIN DIAL OPERATING MECHANISM Filed Jan. 15, 1932 2 Sheets-Sheet 1 w I Nw@ July 4, 1933. H, MORIN DIAL OPERATING MECHANISM Filed Jan l5, 1932 2 Sheets-Sheet 2 R O T N E V m ATTORN EY 4" A prerequisite tolearning to dial a'telereceives the telephone and may be swung Patented July '4, 1933 l i 'I r 1,917,049

UNITED STATES PATENT?" OFFICE n LOUIS n. MORIN, or NEW Yonx, Niv. I

DIAL oPERATING MEcHAmsm Application mea January l15, 1932. serial No. 586,901.

In automatic telephone systems, the call this ability is present, it is necessary to number selecting mechanism is actuated in Search the face of the dial-for each itein of accordance with electrical impulses set up the number to be dialed unless the location of by control mechanism. The control mechathe characters printed on the face of the dial 5 nism for this purpose consists of a dial which 1 are memorized. Under such circumstances, 55

'is mounted upon the telephone or switchthe dialing ofa call number having seven board with which it is associated. lSuch dials Aitems is an involved and particular operation, `include a base in which the mechanism for and because of the closeness of the openings setting up the actuating impulses 'for the sein the rotatable disk to one another, it is very 1 lecting mechanism is located, and on the upeasy to make a mistake. 00

per surface of the base the items of call num- In order to eliminate these diiiiculties enbers are printed; the items are printed on an countered in the use of the automatic teleannular section of the base and are divided phone, I have invented a device for mechaninto ten groups, each group including several ically Vactuating the vdial of an automatic 15 letters and a number. Rotatably mounted telephonev tc progressively dial the items of 05 on the base, there is a disk which extends over a call number. By usin the device of my the annular section of the base on which the invention any call numer maybe dialed letters and numbers are printed and which even though the person making the call does is operatively related to the mechanism withnot know the items of the call number of 20 in the base. The section of the disk extendthe line to which he desires to be connected. 70

ing over the aforementioned annular portion In accordance with my invention, I proof the base has a series of openings there- 'vide a device which includes dial actuating through, ten in number, through which the means which is adapted to rotate the dial of various groups of characters printed on the a telephone.y This dial actuating means is 5 base may be seen. To dial an item of a call connectible 'to the dial of a telephone and 75 number, the operator inserts his finger or movement is imparted thereto through a some implement into the opening in the dial power receiving element. The movement above the group of characters which inimparted t?) the dial actuating means from cludes the particular item he wishes to dial the power receiving element is transmitted 0 and rotates the dial until the finger or imthrough a translating element whichtrans- 80 plement abuts against a s top` member at lates the power into. successive, predeterwhich point he releases the dial'. Upon remined movements of the dial actuating leasing the dial it is returned to its initial means to progressively. dial the items of a position by a spring and on its return acparticular call number. The translating ele- 35 tuates the mechanism which sets up the acment is readily and easily removed and re- 85 vt-uating impulses. This operation must be placed, there being a translating element for repeated for each item in the call number. each call number for rwhich it is desired to Commonly, and particularly in large comuse the dialing device. munities where there are several telephone An advantage of the dialing device of my 0 stations, telephone call numbers aggregate invention is the fact that it does not prevent seven itemsthe first three representing astathe use of the dial as it is now actuated. To tion, and the last four a line in that station. enable the dial to be used as it has been used In such cases the dial must be actuated seven heretofore, the `dialing device of my invenr times in order to secure a particular line. tion is pivotally mounted upon a base which phone number has been the ability to distinabout itsv pivotal connection to expose the guish the characters in the language emface of the dial.

ployed and the ability to recognize the first Specifically, I provide a base or standard two or three letters of the name of the stawhich receives the telephone. base and serves "0 tion in which a line iS desired. Even when to position 'the dialingmechanism with re- 100 spect to the telephone. This base has a p air of upstanding bifurcated brackets to Whlch the telephone dialing device'is pivotallyV secured so that it may be swung away from the telephone. to expose the face of the dial for the purpose of operating the dial in the usual lnanner. The dialing device consists of a frame or casing in which the mechanism for actuating the dial is mounted. This mechanism includes a shaft which is rotatably mounted in the casing and extends through the bottom of the casing. On the outer end of this shaft, there is secured an arm which has a flange that is adapted to extend into one of the openings in the dial. In the no rmal position of the dialing mechanism, this arm is so located that when the dialing mechanism is swung about its pivot into operating position, the flange extends into the opening in the dial which corresponds to the numeral zero. On the inner end of the aforementioned shaft there is a pinion secured to the shaft which meshes with an arcuate rack that is pivotally secured to the casing. This arcuate rack actuates the pinion which in turny rotates the shaft, and through the aforementioned arm on 'the end of the shaft actuates the dial, the amount the arcuate rack is moved about its pivot determining the item which is dialed. Above the rack there is a circular dish-shaped section which is adapted to receive a translating element which controls the movement of the rack.

This translating element is in the form of a sheet metal annulus and has a plurality of cam sections, one for each item in a call number, which engage a cam follower on the arcuate rack. Each cam section includes an inwardly extending cam of a length sufficient to move the arcuate rack about its pivot through an annular distance such that the dial is actuated to dial a particular item. For each call number for which it is desired to use the dialing device, there is one of these translating elements, and the amount the cams extend4 inwardly is determined by the items in the call number which they represent. A lever is provided for rotating the translating element when it is placed in the dialing device. This lever has a pawl thereon which engages equally spaced ratchet openings at the edge of the translating element. There are as many such ratchet openings as there are cam sections and'each actuation of the lever rotates the translating element through an angular distance equivalent to one cam section, carrying the cam follower on the aforementioned arcuate rack over one of the cam sections of the translating element and thereby dialing the item to which that particular cam corresponds.' The dialing device is so constructed that the translating element can be placed in the device only in one position and after the disk has been These projections may then be pared down to correspond to any particular item.

The invention will be more clearly understood from the following particular description of one embodiment thereof which is shown on the accompanying drawings in which:

Fig. 1 is a side elevation vof a telephone with the dialing mechanism secured thereto, the dialing mechanism being in section;

Fig. 2 is a plan of the dialing device Fig. 3 is a plan of the dialing device with the upper section removed;

Fig. 4 is a plan of a translating element to be used with the dialing device; and

Fig. 5 is an enlarged fragmentary section of a translating elementillustrating the relation of the cams thereon to the items of telephone call numbers.

The telephone 1 illustrated in the dra-wings is ofthe hand type and is shown mounted in a base. The base consists of a split ring 2 of the configuration of the telephone base and having an internal shoulder 3 on which the base of the telephone rests and an inwardly extending, circumferential flange 4. To this split ring there is secured a sheet metal bottom 5 which has an offset circumferential flange 6 engaging the upper surface of the flange 4 and a pad 6 of flexible material. At the point at which the base ring is split, there is a bracket 7 formed on each end of the ring through which there are aligned openings. One of these brackets is internally threaded and a machine screw 8 secures the ends of the ring together and serves to contract the ring and clamp the telephone therein. At the front of the telephone, there are a pair of parallel,- upstanding, bifurcated brackets 9 formed integral with the base ring. These brackets have aligned openings therethrough to receive pivot pins for securing thedialing device to the base ring.

The dialing device comprises a frame or casing which is made in two sections, a lower section 10 and an upper section 11. The lower section of the casing of the dialing device is dish-shaped and has `a configuration as shown in Fig. 3. On the bottom of this section, there is a pair of depending brackets 12 formed integral therewith. These brackets 12 extend between the bifurcated brackets 9 of the base ring and are pivotally secured thereto by pivot pins 13. The brackets 12 have inclined faces or edges 14 which form abutment surfaces that abut against similar Surfaces 14a on the brackets 9 extending from the base ring to accurately position the dialing mechanism over the dial 15 of the telephone. 'At substantially the center of the lower section of the casing, there is an opening formed through the bottom of the casing, the axis of which opening, in the operative position ofthe dialing device, is coaxial with the dial of the telephone. In this opening, there is a bushing 16 which has an internal shoulder 17 formed thereon. Journaled in this bushing, is a shaft 18 the inner end 19 'there is secured thereon a radial arm 22' which has a downwardly extending flange 23 that extends -in to the opening in the telephone dial corresponding to the item which requires the maximum movement of the dial. Through this arm rotation of the shaft 18 is transmitted to the dial. On the lower surface of the bottom of the casing, a' projection or abutment 24 is formed against which the arm 22 abuts in the normal position of the dialing mechanism. The shaft 18 is rotated to actuate the dial through a pinion 25 formed on the shaft near the inner end thereof which pinion meshes with an arcuate rack 26. The arcuate rack meshing with the pinion 1s an arcuate continuation of one arm 27 a of a bell crank lever 27 that is pivotally mounted on a pin'28 secured in the bottom of the caslng. This same arm of the bell crank lever carries a cam follower 30 that is rotatably mounted upon a pin 31 which extends through the arm. The other arm 276 of the bell crank lever is of hook-shape and it is secured to one'end of a spring 32. The other end of the spring 32is fastened to a pin 33 that is embedded in the casing. The spring acts upon the bell crank lever in such a direct-ion as to move the rack to the inoperative position of the telephone dial. The arm 27a of the bell crank lever on which the rack is mounted is provided with an abutting projection 34 that is adapted to abut against the side of the casing to limit movement of the rack in response to the force exerted by the spring 32.

. Between the brackets 12 formed on the lower section of the casing, the casing extends outwardly forming a substantially triangular-shaped extension 35. In this extension a lever 36 is pivotally mounted on a pivot pin 37y and is spring-pressed, by means of a spring 38 fitting in a recess 39 in the lever and abutting against the side wall ofthe extension, `against one side wall of the extended portion of the casing. This lever is bifurcated at its radially outer end and carries a slidably mounted pin 40 which extends through the lever and a groove 41 formed in the bottom of the casing. The pin has a flange 42 formed thereon between the arms of the bifurcated portion of the lever and it is spring-pressed towards the top of the casing by a spring 43 acting between the flange and one 'arm of the bifurcated portion of the lever. The lever is also provided with abutment projections 44 to limit its movement about its pivot.

Around the lower section of the casing,

there is a series of inwardly extending lugs 45, shown as three in number, through which machine screws 46 pass to secure the two sections of the casing together. One of these lugs has'an additional opening therethrough in which a dowel-pin 47 is secured which is adapted to secure and position an abutment plate 47', the purpose of which will hereinafter appear.

`The upper section 11 of the casing of the dialing device is substantially circular in plan and is concentric'with the shaft 18.

This section is dish-shaped, the bottom thereof forming a partition wall 48 and having an arcuate slot 48 formed therein for the cam follower 30 secured to the rack. It is also provided with an extension 49 covering the triangular extension 35 between the brackets on the lower section. At the center of the partition 48 of thissection of the casing, there is formed a hub 50 which has an annular downwardly opening groove 51 formed therein. The hub is bored through the center thereof to receive a stationary shaft 52, a limiting shoulder being provided on the shaft and the hub to position the shaft in the hub in which it is secured by a nut 53 threaded on the upper orouter end thereof. Thetinner end of this shafthas a circular flange 54 formed thereon at the center of which there is formed a depression in whichA the inner end 19 of the shaft .18 is received. There is also an internal shoulder formed in this depression between which and the aforementioned pinion there are ball bearings 55.

In the annular groove formed in the hub 50, there is fitted the hub 56 of aV lever 57 which is pivotally mounted in the casing. The lower edge of this lever rests upon the flange 54 at the inner end of the shaft 52 which secures the hub in the groove. inner end of the hub on the leverand the end wall of the annular groove 51` there is left a space in which there is fitted a convolute spring 5S, one end of the spring passing through the hub onthe casing and the other Between the end being secured in the hub of the lever.

This spring exerts a force upon the lever tending to rotate the lever in a counter-clockwise direction as shown in Fig. 2. The lever is limited in its movementl in a counter-clockwise direction by an abutting shoulder 59 formed on the casing .lever which abuts against the stop .plate 47 on one of the lugs 45. The outer end of the lever is curved and a portion 6() thereof extends beyond the casing. That portion of the lever extending beyond the easing is knurle'd as is a projection 61 formed on the casing. The knurled sec-' tion of the lever and the knurledv projection on the casing constitute finger pieces which are used in actuating the le ver about its pivot. Forinstance,thethumbmaybe pressed against the projection on the casing and the first finger used to actuate the lever, drawing the l 'lever towards the thumb. Near the outer end of the casing, the lever carries a pawl which `comprises a pin 62 that has a squared section 62a which is received in a square 'slot in the lever. Below this squared section the pin is circular in cross section and extends through the bottom of the slot, the end of the pin having a limiting washer 63 thereon to limit the outward movement of the pin which is urged outwardly by a spring 64. Above the squared section, the pin is also circular in cross section and has an inclined cam surface which faces in the direction in whichl the spring 58 tends to move the lever.

The side walls of the upper section of the casing have'an undercut groove 65 formed therein adjacent the partition. This undercut groove communicates with a perpendicular slot 66 in the side Wall. Substantially opposite this slot in the side wall, there is an overhanging projection 67 formed on the upper edge of the casing and adjacent the slot a portion of the upper section of the casing is cut away as at 68. The undercut groove formed in the side walls of the upper section of the casing is adapted to receive a projection 69 on a translating element 70 which is received in the upper section of the casing, the projection passing through the slot 66 to the groove. The translating element which is held in place by the overhanging projection 68 and may be removed from the casing when the projection 69 is aligned with the slot 66 by placing a finger under the translating 'element at the cut-out portion 68 of the casing.

The translating element 70 consists of a sheet metal annulus which is divided into as many angular sections as there are characters in the call numbers of the telephone system with which the dialing device is to be associated. In the embodiment shown the annulus is divided into seven sections. Each section includes an inwardly extending projection 71 that constitutes a cam. These cams cpo'perate with the cam follower 30 on mime@ the rack and move the rack about its pivot to a greater or lesser extent as the translating element is rotated depending upon the length of the cam projection. The approaching surfaces 7 la ofthe cam sections are curved in accordance with the path of the cam follower of the rack in its motion about its pivot. The aforementioned outwardly extending projection 69 on the translating element, which is received in the slot 66 inthe side wall of the casing, and the undercut groove with which the slot communicates, together with the overhanging projection 67 on the casing,

\`serve to hold the translating element from moving laterally while being rotated. The slot 66 and the projection69 also serve to position the translating element when it is inserted in the dialing device. Around the edge of the translating element, there are seven radial slots. one for each cam section of the disk.' These slots in the edge of the translating element cooperate with the pawl on th-e lever 57 by means of which the translating element is rotated. Movement of the lever rotates the disk one-seventh of a turn, carrying the cam follower on the rack over one cam section of the disk. Movement of the lever seven times, therefore, in the embodiment shown, rotates the translating element through one revolution and carries the cam follower of the rack over the seven cam projections of the element. Each cam section is of a length to move the rack a distance that will actuate the dial to a particular character. As shown in Fig. 4 the cam which is illustrated in the dialing device has cam 'sections which correspond to the following call number: Lu-7-1670. The receding side 71?) of each 'cam section is so curved that the disk can not be rotated in the reverse direction. In this way, the cam follower acts as a stop, while the lever 57 moves backward under the action of the spring 58 to engage the next succeeding slot in the edge of the disk after the disk has been moved through one-seventh of a revolution. When the lever is released after actuating the disk the inclined face of the pawl causes the pawl to recede in its slot in the leveruntil it reaches the next slot in the translating element.

The last slot in the translating element, relative to the direction of rotation of the translating element, which would be in a clockwise direction as shown in Fig. 4, communicates with an offset opening 72 through the element. This opening through the translating element lies in a circle that includes the center of the pin 40 carried by the lever 36f When this opening arrives in alignment with the pin 40, the pin enters the opening and the lever is moved against the action of the spring 38 with the translating element to the position in which the projection 69 on the translating element is in alignment with the slot 66 in the side wall of the casing. In this v position, the disk can notbe further rotated, and the operator is prevented from dialing the rst number over again. It will be ap- 5 parent that when the disk is placed in the dialing device the pin 40 will not be in align ment with the opening as the lever 36 will be held iri the position as shown in lFig. 2in which the pin is out of alignment with the 0 opening 72 by the action of the spring 38.

The in will not, therefore, prevent initial rotatlon of the translating element. After the number has been dialed or when it is desired to dial another number, the translating element may be removed, and for this purpose a finger may be inserted beneath the translating element at the cut-out portion 68 of the casing. l

In making the translating elements they will be stamped from sheet metal with as many cam sections as there are items in the telephone call numbers 'of the community in `which the disk is to be used. All ofthe cam sections will be of a length to dial the. item requiring maximum movement of the dial and may be cut to any particular item'at'any time. In this way, the translating elements may be economically manufactured and the cutting of the cam sections to correspond to particular items can be readily accomplished because the element is of sheet metal. It will be obvious that these translating elements may be used as advertising medium by business houses. For example, a translating element may have theV name and character of a business printed thereon and be distributed like business cards to customers.

When the dialing mechanism is tojbe used,.

itis in the position shown in 1. If, however, a number is desired to be called for which the operator has no translating element, the dialing mechanism may be swung between its pivotal connection to thel position shown in broken lines in Fig. 1. Inthis position, the face of the dial mis .eX- posed vand the dial may be actuated in the usual way.

From the above description of my invention, it will be apparent that with my dialing device, a telephone dial may be actuated to progreively dial the items of a particplar number even though that call number is not known to the operator. Also any possibility of making a mistake on the dialing of a articular number'is eliminated when this dialing device is used.

It'will be obvious that various changes may be made in the details of the embodiment illustrated in the drawings and above phone comprising means for actuating the dial of a telephone, an operating member for the dial actuating. means, and a translating element lbetween said actuating means and operating member for converting movement otl the'operating member into successive, predetermined movements of vthe actuating means. to progressively dial the items of a particular call number.

2. A telephone dialing device for selectively actuating the dial of an automatic telephone comprising dial operating means con- `nectable to the dial of a telephone, and means for selectively controlling movement of the dial operating means including' a series of control members each operative to control the dial operating means and shiftable into operative position relative to the operating means.

3. A telephone dialing device for selectively actuating the dial of an automatic telephone comprising I ydial operating means adapted to be operatively connected to a telephone dial, and a translating element having a series of control members for the dial operating means thereon and being shiftable upon each actuation of the dial to bring the several control members in sequence into operative relation to the operating means.-

4. A telephone dialing device for selectively actuating the dial of an automatic telephone comprising means forv actuating the dial of a telephone, an ,operating member ment imparting means into successive, pre-y determined movements of the actuating means to progressively dial the items of a particular call number.

6. A telephone dialing device for selectively actuating the dial of an automatic telephone comprising a rotatably mounted member adapted to be connected to a dial, means for rotating said member, operating means for said rotating means, anda translating element between said operating and rotating means for converting movement of the operating means into movement of the rotatable member through successive, predetermined angular distances to progressively dial the items of a particular call number.

7 telephone dialing device for selectively actuating the dial of an automatic telephone comprising a rotatablygmounted mem# ber adapted to be connected to a dial, a puiion on the member, a gear engaging the pinion and adapted to rotate the same, means for operating the gear, and a translating element connecting said gear operating means and the :gear for translatingmovement of the operating means into movement of the rotatable member through successive predetermined angular distances to progressively dial the items of a particular call number.

S. A telephone dialing device for selectively actuating the dial of an automatic telephone comprising` a rotatably mounted member adapted to beconnected to a dial, a pinion on the member, a rack engaging the pinion, means for operating the rack, and a translating element connecting the rack operating means and the rack for translating movement of ther rack operating means into successive predetermined movements of the rack to actuate the rotatable member through successiveI angular distances and progressively dial the items of a particular call number.

9. A telephone dialing device for selectively actuating the dial of an automatic telephone comprising a rotatably mounted shaft, a lever on said shaft having a projection adapted to extend into an opening in a telephone dial, a pinion secured to the shaft a pivotally mounted arcuate rack meshing With the pinion, means for operating the rack to actuate the rotatable member, and means for translating movement of the operating means into successive predetermined movements of the rack.

10. A telephone dialing device for selectively actuating the dial of an automatic telephone comprising means for actuating the dial of a telephone, operating means movable a predetermined amount in a delinite direction, and translating means mechanically connecting said operating means to said actuating means for converting the movement of the operating member into successive, predetermined movements of the actuating means to progressively dial the items of a particular call number.

1l. A telephone dialing device for selectively actuating the dial of an automatic telephone comprising dial actuating means, rotatable operating means for said actuating means, means for causing a step by step operation of the operating means, and translating means for converting the step by step movement of the operating means into successive, predetermined movements of the dial actuating means to progressively dial a par-l ticular call number.

12. A telephone dialing device for selectively actuating'the dial of an automatic telephone comprising dial actuating means, a translating element operatively related to the dial actuating means for converting movelia-.12049 ment imparted thereto into successive predetermined movements of the dial actuating means, and means for lnoving said translating element upon each actuation of the dial.

13. A telephoneY dialing device for selectively actuating the dial of an automatic telephone comprising dial actuating means, a translating element rotatably mounted in operative relation to the" dial actuating means, and operating means for rotating the translating element, said translating element conver-ting rotational movement imparted thereto into successive, predetermined movements of the dial actuating means to progressively dial the items of a particular call number.

14. A telephone dialing device for selectively actuating the dial of an automatic tele- .phone comprising dial actuating means, a

translating element rotatably mounted in operative, relation to the actuating means for converting rotational movement imparted thereto into successive, predetermined movements of the dial actuating means, and manually operative means for rotating the translating element.

15. A telephone dialing device for selectively' `actuating the dial of an automatic telephone comprising dial actuating means, a translating element rotatably mounted in operative relation to the actuating means for converting rotational movement imparted thereto into successive, predetermined movements of the dial actuating means, and a manually operative ratchet for rotating said translating element. r

16. A telephone dialing device for selectively actuating the dial of an automatic telephone comprising a rotatably mounted shaft,

a lever on said shaft having. a projection adapted to extend into an opening in a telephone dial, a pivotally mounted arcuate rack meshing .with the pinion, a cam follower associated with the rack, a rotatable translating element having a series of substantial radial projections thereon for engaging the cam follower to convert rotational movement of the translating element into successive, predetermined movements of the rack, and means for rotating the translating element.

17. A telephone dialing device for selectively actuating the dial of an automatic telephone comprising a rotatably mounted shaft, a lever on said shaft having a projection adapted to extend into an opening in a telephone dial, a pivotally mounted arcuate rack meshing with the pinion, a cam follower associated with the rack, a rotatable translating element having a series of substantial radial projections thereon for engaging the cam follower to convert rotational movement of the translating element into successive, predetermined movements of the rack, and a manually operative .ratchetfgarotating the` translating element.

LBL

18. A telephone dialing device for .selectively actuatlngthe dial of an automatic telephone c'omprlsing dial operating means adapted to be operatively connected to a telephone dial, and a translating element having a series of lcontrol members each opera.- tive control the dial operating means, and the translating element being shiftable upon each actuation of the dial to bring the several control members into operative position relative to the dial operating means.

, 19. In combination,abase for an automatic telephone having a dial mounted thereon,

said base being adapted to receive the telefas phone, and a dial actuating device pivotally mounted on said base and positioned thereby in one limit of its -pivotal movement inoperative relation to the dial of the telephone.

20. In combination, a base for an autofor imparting movement thereto, and a translating element having a series of control elements thereon for selectivelyv limiting the movement of the actuating means, said translating element being movable to bring the several control elements into operative relation to the actuating means.

22. A telephone dialing device for selectively actuating the dial of an automatic telephone comprising means for actuating the dial of a telephone, operating means mechanically connected to said dial actuating means ,for imparting movement thereto, a translating element having aA series of control elements thereon-for selectively limiting the movement of the actuating means, said translating element being movable to bring the comprises a plate having means for converttively actuatlng the dial of an automatic tele- .phone'comprising means for actuating the dial of a telephone, operating means mechanically-connected to said -dial actuating means for imparting movement thereto, a translating element having a series of control elements thereon for selectively limiting the movement of the actuating means, said translatting element being movable to bring the several control'elements into operative relation to the actuating means, means for shifting the translating element upon actuation of the dial, and means for locking the dialing device after the dial has been actuated a predetermined number of times.

24. A translating element for a dialing device adapted to selectively actuate the dial of an automatic telephone and having dial actuating means which' translating element` ing movement applied to the dialing device into successive, predetermined movements ofl the dial actuating means.

25. A translating element for a dialing device adapted to selectively actuate the .dial of an automatic telephone and having a dial actuating means, which translating element comprises a plate having means for selectively limiting successiv'e movements of the dial actuating means. 100

26. A translating element for a dialing'device adapted to selectively actuate thedial of an automatic telephone and having dial actuating means, which translating element comprises a plate, and a plurality of cams on said plate, one for each item in a. telephone call number and each cam representing a particular itemof the call number.`

In Witness whereof, I hereunto subscribe m 'si ature. 110

y gn LOUIS H. MORIN.r 

